Wood-heel-nailing machine



\ F. A. REARDO N WOOD HEED NAILING MACHINE Z smexsvsmm. 3-

' Filed Oct.

INVENTOR fiflkavdlon Fred ATTORNEY Patented Dec. 18, 1923.

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FRED A. REARDON, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO HAIWEL SHOE MA- CHINERY COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF MASSA- CHUSETTS.

WOOD-HEEL NAILING MACHINE.

Application filed October 16, 1920.

To all whom it may concern:

Be it known that I, FRED A. REA DON, a citizen of the United States, residing at Bridgeport, in the county of 'Fairfield and State of Connecticut, have invented certain new and, useful Improvements in Wood Heel-Nailing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to machines for use in nailing heels on foot-wear, but more especially intended for use where'the nails are driven from within the shoe as is commonly done when wood heels are used. Much difiiculty has heretofore been experienced in nailing heels of this type due to inadequate means for holding the heel and shoe accurately in position during the nail driving operation and to the inaccessiblity of the inner sole surface to the driving devices. This operation has there-fore been slow and unsatisfactory.

This invention seeks to overcome the difficulties heretofore experienced by providing simple foot actuated clamping mechanism by which the heel may be accurately held in proper relation to the shoe and by providing in conjunction therewith means for readily positioning the nails beneath driving devices so that the nails may be readily driven in rapid succession in correct position by means of a hand hammer.

For a more complete understanding of this invention, together with other objects and advantageous details and combinations of parts, reference may be had to a more complete description of one embodiment thereof shown in the accompanying drawings in which,

Fig. 1, is a left side elevation of the machine.

Fig. 2, is a front elevation of the top portion thereof on a larger scale.

Figs. 3 and 4, are fragmentary side elevations of the top portion of the machine with parts in section illustrating difl'erent positions of parts with relation to the shoe and heel during operation of the machine.

Fig. 5, is a fragmentary vertical cross section through the upper clamping and nail guiding member substantially on line 55 of Fig. 2, and

Fig. 6, is a section on line 66 of Fig. 5.

Referring to the drawings A represents a Serial No. 417,333.

machine pedestal of any suitable description carrying at the top thereof a machine head B. At one side head B carries a vertical post 1 having a slideway for reception of a slide 2 which is held in position by means of a bar 3 bolted to the upright 1 and forming one wall of the slideway. Pivoted at the point 4 to the slide 2 is the upper end of a treadle rod 5 projecting downwardly within the standard A and pivoted at its lower end at 6 to treadle lever 7. Lever 7 is fulcrumed on a pin 8 journaled between lugs 9 on the machine base, pin 8 passing through a slot 10 in the lever. A rod 11 is made fast in the pin 8 and projects through a perforated boss 12 in the lever 7. The upper end of rod 11 is threaded at 13 for the reception of an adjusting nut 14, and a spring 15 surrounding the rod 11 bears between the nut 14 and the upper face of the boss 12. this construction providing a yieldable fulcrum for the lever 7. Fixed adjacent the forward face of the base A is a segmental ratchet 1.6, and cooperating therewith is a pivoted pawl 17 having a plate 18 projecting rearwardly thereof into engagement with the teeth of the ratchet 16. A spring 19, seated within a socket in the outer end of the lever 7, bears against the underside of the outer end 20 of the pawl 17 to urge it into engagement with the Q01 the lever 7 and to a lug 23 on the pedestal 001 A normally holds the outer end of the lever 7 in raised position with the slide 2 also raised.

Projecting laterally and forwardly from the slide 2 is a bracket 24 which carries one portion of a heel clamp shown more in detail in Figs. 3 to 6, this clamp comprising a heel last member 25 adapted to engage and substantially fit the inner surface of a shoe sole closely adjacent the counter portion thereof as shown in Figs. 3 and 4. Member 25 is made fast to the bracket 24 by a stud 26 passing through an over-hanging portion 27 of the bracket, and engaging a threaded opening therein. A pin 28. also carried by the bracket 2 projects into a socket 29 in the edge of the member 25. The edge face of this member opposite the socket 29 has a transverse s ot 30 for the reception of an adjustable counter engaging piece 31 provided with guiding pins and 33 engaging mating sockets in the member 25. A set screw 34 passing through the side face of the block 25 engages the pin 33' to lock the block 31 in any adjusted position relative to the member 25. Member is provided with a series of inclined nail tube perforations 35 terminating at their upper ends in enlarged'portions shown at 36 in Fig. 5. A plate 37 seated in the lower end of each enlarged portion 36 carries nail retaining fingers 38. The en larged openings 36 are screw threaded for the reception of plugs 40 threaded at their lower ends to lit the openings 36 and each having a polygonal portion 41 for the receptionof a wrench by which the block may be manipulated. As shown in Fig. 5. eachblock 40 is perforated at 42 for the slidable reception of a nail driving element 43 hav ing ahead 44 at its upper end. Communicating with the perforation 42 is a perforation 45 which serves as a receptacle for nails, a portion of the perforation 42 beneath the same forming part of a nail tube leading to the retainer 38.

Fixed to the post 1 is a cam plate 46 which is adjustable vertically thereon by means of a slot and bolt connection 47. Plate 46 carries a triangular shaped cam element 48 on which is adapted to ride a roller 49 carried by one arm 50 of a bell crank lever 51 journaled on a bolt 52 made fast to the bracket 24. The other arm 53 of the bell crank lever 51 is ofiset laterally and carries a pin 54. Pin 54 passes through a pair of spaced lugs 55 and 56 (see Fig. 2) fixed to a spider 57 (see Figs. 3 and 4). Spider 57 has a series of outwardly and downwardly inclined fork fingers 58. the forks thereof passing at either side of the driving elements43 and engaging beneath the heads thereof. A spring 59 made fast at one end to the arm 50 and at its other end to the slide 2 normally retains the roller 49 in rearward position and allows the spider 57 to remain in lowered position with the fingers 58 resting on the upper surface of the blocks 40. 7 Below the bracket 24, head B is forwardly extended at 60 and isformed at its outer end with a pair of spaced upstanding portions 61 and 62. Guide rods 63 and 64' are fixed in Fig. 3, and the block being held in adjusted position on the rods by means of set screws as shown at 74 in Fig. 3. Block 70 has a pair of vertically extending perforated bearings 75 and 7 6 withinwhich are slidably mounted rods 77 and 73 respectively, these rods having rack teeth 79 and 80 out in their lower extremities. Between the bearings 7 5 and 76 block 70 has a pair of downwardly extending cars 81 and 32 perforated at their lower ends for a pivot 83. Pivot 33 carries a gear 84 meshing on opposite sides in the rack teeth 79 and 80 by which means sliding motion imparted to one of the rods 77 and 78 will impart an equal motion in the reverse direction to the other rod. At its upper end rod'77 carries a lug 85 on which is pivotally carried a heel top lift engaging plate 86. A screw 87 is threaded in the rod 77 beneath the plate 86 by which means the angular positionof he plate relatlve to the rod 77 may be ad usted.

The upper end of rod 78 is formed as a vertically extending ear, and a forked member 88 having laterally extending ears 89 and 96 is adjustably connected thereto by means of a bolt 91. A. wing nut 9.2 is threaded on bolt 91 to permit the member 88 to be fixed in adjusted position on the rod 78, the cars 89 and being slotted as shown at 93 in Fig. 4, to facilitate this action.

'lhe operation of this machine is as follows: r

A nail is placed point downwardly in each of the perforations 45 in the blocks 40 ready to be fed beneath the drivers, the slide 2 and block 25 being positioned at their upper'limits of travel. A shoe is then placed in position shown in Fig. 3, block25 engaging the inner face of the sole and against the counter and the heel held up against the sole of the shoe in position to be nailed. The operator then depresses the treadle lever 7 bringing the shoe down in positionas shown in Fig. 4, with the toplift resting on the plate 86 the angularity of which should be adjusted thereto, and the fork member 88 engaging the sides 'of the heel adjacent its upper portion, these members having been suitablyadsupported thereby to conform automatically to a large extent to the configuration ofthe heel by which means it may be readily clamped in position on the shoe, as shown in Fig. 4. As the block 25 starts to move downwardly, roller 49 ismoved outwardly by contact with the cam surface 43 which thus rocks the bell crank lever 51 raising the arm 53thereof and raising the spider 57. This raises the drivers till their lower ends pass above the points where the nail reservoir perforations 45 merge with the nail tubes, this action allowing the nails therein to drop down the tubes into the position shown in Fig. 5. Further downward motion of the treadle 7 allows the roller 49 to ride rearwardly thus permitting the arm 53 to resume its former lowered position and allowing the drivers 43 to drop into contact with the nail heads, as shown in Fig. 5. hen the shoe and heel are firmly clamped between the block 25 and the members 86 and 88 in the position shown in Fig. 4, each nail tube is provided with anail in position beneath the corresponding driver where it may be driven by striking blows on the head 44: with a hand hammer. The shoe is maintained clamped in its lowered position by engagement of the pawl 17 with the ratchet teeth 16, spring 15 7 allowing the pivot of the treadle to raise after a certain degree of clamping pressure is reached. By this construction compara- Serial No. 422,985, filed November 10, 1920.

Having thus described an embodiment of this invention, it should be evident that many modifications and changes might be made therein without departing from its spirit or scope as defined by the appended claims.

1. In a machine of the class described, a heel last member having a nail tube, co-operating clamping members between which and said last member the heel and sole of a shoe may be clamped in assembled relation by relative movement of said members, and means acting on relative movement of said membars to clamping position, to position a nail in said nail tube.

2. In a machine of the class described, a movable shoe last member having a nail tube and a reservoir communicatin with said tube, a nail driver reciproca le in said nail tube to drive'a nail therein and normally obstructing said communication, and means acting on movement of said mem her to withdraw said driver from obstruct ing position to allow a nail in said reservoir to pass into said nail tube. i

3. In a machine of the class described, a movable shoe last member having a nail tube and a reservoir communicating with said nail tube, a member cooperating with said shoe last member to clamp a shoe on movement theretowa-rd of said last member, a nail driver reciprocable in said nail tube to drive a nail therein and normally obstructing said communication, and means actuable on movement of said last member to shoe clamping position to withdraw said driver from obstructing position to allow a nail in said reservoir to pass into said nail tube, and then to allow said driver'to resume obstructing position in driving relation to said nail.

4. In combination, a frame, a slide mounted to reciprocate on said frame, a nail block carried by said slide and having a plurality oi": nail tubes therein, a reservoir communicating with each nail tube, a headed nail driver reciprocable in each tube and normally obstructing said communication, a spider engaging beneath the heads of said drivers, and means for raising said spider to retract said drivers in unison from obstructing position to allow nails to feed thereunder into driving osition during the reciprocation of said sli e.

5. In combination, a frame, a slide mounted for vertical reciprocation on said frame, a nail block carried by said slide and constructed and arranged to substantially fit the heel portion of the sole within a shoe and having a. plurality of nail tubes therein, a reservoir communicating with? each nail tube, a nail drive-r reciprocating in each nail tube and in nail driving position obstructing said communication, a heel engaging clamp element supported beneath said nail block and cooperating therewith to clamp a heel in position on said shoe on the descent of said slide, and common means actuable on the descent of said slide for raising all of said drivers out of obstructing position to allow nails in said reservoir to be fed therebeneath and for thereafter allowing said drivers to descend into nail driving position.

v 6. In a machine of the class described, a frame, a slide mounted to reciprocate on said frame, a shoe clamping member fixed to said slide and having nailing tubes, a nail reservoir for each tube, a cam fixed to said frame, and means carried by said slide and actuated by said cam on reciprocation of said slide for permitting feed of nails from said. reservoir to said nail tubes in driving position.

7. A machine of the class described, comprising a plurality of cooperating clamping members, one of said members constructed and arranged to pass within the shoe and having therein a plurality of nail tubes and a nail reservoir communicating with and angularly related to each nail tube.

8. In a machine of the class described, a heel clamping member, a fixed apertured bearing, a lever connected with said mem her and having an aperture in alinement with that of said bearing, a fulcrum-pin entering the apertures of said bearing and lever and affording a loose connection beice till

tween said apertured elements permitting transverse displacement of the apertured portion of said lever, a spring acting to normally maintain the aperture'd portion of said lever yieldingly in predetermined relation to said bearing, and intercngaging ratchet and pawl elements one of which is movable with saidlever and the other is fixedly mounted independently thereof.

9. In a machine of the class described, a shoe last member suitably constructed and mounted to enter the heel portion of a shoe upper and having a plurality of nail tubes therein, a nailreservoir communicat i11 with each nail tube nail drivers reciprocable in said nail tubes and normally obstructing v the communications with said reservoirs, and means for simultaneously removing said drivers from. obstructing positions.

10.111 a machine of the class described,

a shoe last member having aplurality of nail-tubes therein and having a shoe-engaging lower face and DZHl-IGSQIVOlISQiLCll communicating alt'its delivery end with one of said nail-tubes and having its receiving end remote from the shoe-engaging face of the'shoe last member, nail drivers reciprocable in said nail tubcs and normally ob structing the communications with said reservoirs and means for simultaneously removing said drivers from obstructing positions. 7

In testimony whereof, I'have signed my name to this spec1ficat1on.,-

FRED A; REARDQN. 

